302 lines
11 KiB
Python
302 lines
11 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Unit Tests for remote procedure calls using queue
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"""
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import mock
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from oslo_concurrency import processutils
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from oslo_config import cfg
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from oslo_db import exception as db_exc
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from karbor import context
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from karbor import db
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from karbor import exception
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from karbor import manager
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from karbor import rpc
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from karbor import service
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from karbor.tests import base
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test_service_opts = [
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cfg.StrOpt("fake_manager",
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default="karbor.tests.unit.test_service.FakeManager",
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help="Manager for testing"),
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cfg.StrOpt("test_service_listen",
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help="Host to bind test service to"),
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cfg.PortOpt("test_service_listen_port",
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default=8799,
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help="Port number to bind test service to"), ]
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CONF = cfg.CONF
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CONF.register_opts(test_service_opts)
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class FakeManager(manager.Manager):
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"""Fake manager for tests."""
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def __init__(self, host=None,
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db_driver=None, service_name=None):
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super(FakeManager, self).__init__(host=host,
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db_driver=db_driver)
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def test_method(self):
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return 'manager'
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class ExtendedService(service.Service):
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def test_method(self):
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return 'service'
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class ServiceManagerTestCase(base.TestCase):
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"""Test cases for Services."""
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def test_message_gets_to_manager(self):
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serv = service.Service('test',
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'test',
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'test',
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'karbor.tests.unit.test_service.FakeManager')
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serv.start()
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self.assertEqual('manager', serv.test_method())
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def test_override_manager_method(self):
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serv = ExtendedService('test',
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'test',
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'test',
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'karbor.tests.unit.test_service.FakeManager')
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serv.start()
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self.assertEqual('service', serv.test_method())
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class ServiceFlagsTestCase(base.TestCase):
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def test_service_enabled_on_create_based_on_flag(self):
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self.flags(enable_new_services=True)
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host = 'foo'
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binary = 'karbor-fake'
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app = service.Service.create(host=host, binary=binary)
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app.start()
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app.stop()
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ref = db.service_get(context.get_admin_context(), app.service_id)
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db.service_destroy(context.get_admin_context(), app.service_id)
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self.assertFalse(ref['disabled'])
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def test_service_disabled_on_create_based_on_flag(self):
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self.flags(enable_new_services=False)
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host = 'foo'
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binary = 'karbor-fake'
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app = service.Service.create(host=host, binary=binary)
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app.start()
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app.stop()
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ref = db.service_get(context.get_admin_context(), app.service_id)
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db.service_destroy(context.get_admin_context(), app.service_id)
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self.assertTrue(ref['disabled'])
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class ServiceTestCase(base.TestCase):
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"""Test cases for Services."""
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def setUp(self):
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super(ServiceTestCase, self).setUp()
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self.host = 'foo'
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self.binary = 'karbor-fake'
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self.topic = 'fake'
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def test_create(self):
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app = service.Service.create(host=self.host,
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binary=self.binary,
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topic=self.topic)
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self.assertTrue(app)
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def test_report_state_newly_disconnected(self):
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service_ref = {'host': self.host,
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'binary': self.binary,
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'topic': self.topic,
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'report_count': 0,
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'id': 1}
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with mock.patch.object(service, 'db') as mock_db:
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mock_db.service_get_by_args.side_effect = exception.NotFound()
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mock_db.service_create.return_value = service_ref
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mock_db.service_get.side_effect = db_exc.DBConnectionError()
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serv = service.Service(
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self.host,
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self.binary,
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self.topic,
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'karbor.tests.unit.test_service.FakeManager'
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)
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serv.start()
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serv.report_state()
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self.assertTrue(serv.model_disconnected)
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self.assertFalse(mock_db.service_update.called)
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def test_report_state_disconnected_DBError(self):
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service_ref = {'host': self.host,
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'binary': self.binary,
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'topic': self.topic,
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'report_count': 0,
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'id': 1}
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with mock.patch.object(service, 'db') as mock_db:
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mock_db.service_get_by_args.side_effect = exception.NotFound()
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mock_db.service_create.return_value = service_ref
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mock_db.service_get.side_effect = db_exc.DBError()
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serv = service.Service(
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self.host,
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self.binary,
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self.topic,
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'karbor.tests.unit.test_service.FakeManager'
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)
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serv.start()
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serv.report_state()
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self.assertTrue(serv.model_disconnected)
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self.assertFalse(mock_db.service_update.called)
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def test_report_state_newly_connected(self):
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service_ref = {'host': self.host,
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'binary': self.binary,
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'topic': self.topic,
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'report_count': 0,
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'id': 1}
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with mock.patch.object(service, 'db') as mock_db:
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mock_db.service_get_by_args.side_effect = exception.NotFound()
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mock_db.service_create.return_value = service_ref
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mock_db.service_get.return_value = service_ref
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serv = service.Service(
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self.host,
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self.binary,
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self.topic,
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'karbor.tests.unit.test_service.FakeManager'
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)
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serv.start()
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serv.model_disconnected = True
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serv.report_state()
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self.assertFalse(serv.model_disconnected)
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self.assertTrue(mock_db.service_update.called)
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def test_report_state_manager_not_working(self):
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service_ref = {'host': self.host,
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'binary': self.binary,
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'topic': self.topic,
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'report_count': 0,
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'id': 1}
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with mock.patch('karbor.db') as mock_db:
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mock_db.service_get.return_value = service_ref
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serv = service.Service(
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self.host,
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self.binary,
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self.topic,
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'karbor.tests.unit.test_service.FakeManager'
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)
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serv.manager.is_working = mock.Mock(return_value=False)
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serv.start()
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serv.report_state()
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serv.manager.is_working.assert_called_once_with()
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self.assertFalse(mock_db.service_update.called)
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def test_service_with_long_report_interval(self):
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self.override_config('service_down_time', 10)
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self.override_config('report_interval', 10)
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service.Service.create(
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binary="test_service",
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manager="karbor.tests.unit.test_service.FakeManager")
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self.assertEqual(25, CONF.service_down_time)
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@mock.patch.object(rpc, 'get_server')
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@mock.patch('karbor.db')
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def test_service_stop_waits_for_rpcserver(self, mock_db, mock_rpc):
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serv = service.Service(
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self.host,
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self.binary,
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self.topic,
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'karbor.tests.unit.test_service.FakeManager'
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)
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serv.start()
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serv.stop()
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serv.wait()
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serv.rpcserver.start.assert_called_once_with()
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serv.rpcserver.stop.assert_called_once_with()
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serv.rpcserver.wait.assert_called_once_with()
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class TestWSGIService(base.TestCase):
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def setUp(self):
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super(TestWSGIService, self).setUp()
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@mock.patch('oslo_service.wsgi.Loader')
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def test_service_random_port(self, mock_loader):
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test_service = service.WSGIService("test_service")
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self.assertEqual(8799, test_service.port)
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test_service.start()
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self.assertNotEqual(0, test_service.port)
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test_service.stop()
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self.assertTrue(mock_loader.called)
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@mock.patch('oslo_service.wsgi.Loader')
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def test_reset_pool_size_to_default(self, mock_loader):
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test_service = service.WSGIService("test_service")
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test_service.start()
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# Stopping the service, which in turn sets pool size to 0
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test_service.stop()
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self.assertEqual(0, test_service.server._pool.size)
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# Resetting pool size to default
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test_service.reset()
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test_service.start()
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self.assertEqual(cfg.CONF.wsgi_default_pool_size,
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test_service.server._pool.size)
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self.assertTrue(mock_loader.called)
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@mock.patch('oslo_service.wsgi.Loader')
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def test_workers_set_default(self, mock_loader):
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self.override_config('osapi_karbor_listen_port',
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CONF.test_service_listen_port)
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test_service = service.WSGIService("osapi_karbor")
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self.assertEqual(processutils.get_worker_count(),
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test_service.workers)
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self.assertTrue(mock_loader.called)
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@mock.patch('oslo_service.wsgi.Loader')
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def test_workers_set_good_user_setting(self, mock_loader):
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self.override_config('osapi_karbor_listen_port',
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CONF.test_service_listen_port)
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self.override_config('osapi_karbor_workers', 8)
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test_service = service.WSGIService("osapi_karbor")
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self.assertEqual(8, test_service.workers)
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self.assertTrue(mock_loader.called)
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@mock.patch('oslo_service.wsgi.Loader')
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def test_workers_set_zero_user_setting(self, mock_loader):
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self.override_config('osapi_karbor_listen_port',
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CONF.test_service_listen_port)
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self.override_config('osapi_karbor_workers', 0)
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test_service = service.WSGIService("osapi_karbor")
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# If a value less than 1 is used, defaults to number of procs
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# available
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self.assertEqual(processutils.get_worker_count(),
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test_service.workers)
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self.assertTrue(mock_loader.called)
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@mock.patch('oslo_service.wsgi.Loader')
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def test_workers_set_negative_user_setting(self, mock_loader):
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self.override_config('osapi_karbor_workers', -1)
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self.assertRaises(exception.InvalidInput,
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service.WSGIService, "osapi_karbor")
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self.assertTrue(mock_loader.called)
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